CA2432481A1 - Molding composite objects - Google Patents
Molding composite objects Download PDFInfo
- Publication number
- CA2432481A1 CA2432481A1 CA002432481A CA2432481A CA2432481A1 CA 2432481 A1 CA2432481 A1 CA 2432481A1 CA 002432481 A CA002432481 A CA 002432481A CA 2432481 A CA2432481 A CA 2432481A CA 2432481 A1 CA2432481 A1 CA 2432481A1
- Authority
- CA
- Canada
- Prior art keywords
- mold
- surround
- protrusion
- composite
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
- B29C2045/14877—Pretreatment of the insert, e.g. etching, cleaning preheating or precooling the insert for non-deforming purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Methods for molding a surround over a liner to form a composite shell are provided. The liner is placed in a mold and molten surround material is injected into the mold so as to surround the liner. A surface of a protrusion of the liner abuts the mold so that the surface is exposed and is substantially flush with an exterior surface of the surround after the composite shell is removed from the mold. Molten surround material flows into a slot in a perimeter of the protrusion so that when the surround material solidifies, a rib of surround material extends into the slot to form a pressure seal between the liner and the surround. An adhesive is applied to the liner before placing the liner in the mold for reducing relative movement between the liner and surround as the surround material solidifies and the liner and surround cool.
Claims (32)
1. A method for molding a composite object, the method comprising:
applying an adhesive to a first object of a first material;
curing the adhesive;
heating the first object;
placing the first object in a mold so that a surface of a protrusion of the first object abuts an interior surface of the mold to prevent the surface of the protrusion from being covered by a second material to be injected into the mold in a molten state;
injecting the second material in the molten state into the mold so that the second material surrounds the first object to form the composite object, the second material flowing into a slot in a perimeter of the protrusion of the first object so that when the second material solidifies, a rib of the second material extends into the slot in the perimeter to form a pressure seal between the first object and the second material;
removing the composite object from the mold, wherein the protrusion of the first object extends through the second material so that the surface of the protrusion is substantially flush with an exterior surface of the second material;
and stabilizing the composite object until dimensions of the composite object stop changing.
applying an adhesive to a first object of a first material;
curing the adhesive;
heating the first object;
placing the first object in a mold so that a surface of a protrusion of the first object abuts an interior surface of the mold to prevent the surface of the protrusion from being covered by a second material to be injected into the mold in a molten state;
injecting the second material in the molten state into the mold so that the second material surrounds the first object to form the composite object, the second material flowing into a slot in a perimeter of the protrusion of the first object so that when the second material solidifies, a rib of the second material extends into the slot in the perimeter to form a pressure seal between the first object and the second material;
removing the composite object from the mold, wherein the protrusion of the first object extends through the second material so that the surface of the protrusion is substantially flush with an exterior surface of the second material;
and stabilizing the composite object until dimensions of the composite object stop changing.
2. The method of claim 1, wherein applying an adhesive to a first object comprises applying the adhesive to a heat conducting object.
3. The method of claim 1, wherein applying an adhesive to a first object comprises applying the adhesive to a metal object.
4. The method of claim 3, wherein applying the adhesive to a metal object comprises applying the adhesive to an aluminum object.
N
N
5. The method of claim 1, wherein injecting the second material in the molten state into the mold comprises injecting a substantially non-heat conducting material in the molten state into the mold.
6. The method of claim 1, wherein injecting the second material in the molten state into the mold comprises injecting a plastic in the molten state into the mold.
7. The method of claim 1, wherein injecting the second material in the molten state into the mold comprises injecting glass-filled nylon in the molten state into the mold.
8. The method of claim 1, further comprising curing the second material after injecting the second material into the mold.
9. The method of claim 1, wherein curing the adhesive comprises curing the adhesive from about 6 hours to about 48 hours.
10. The method of claim 7, wherein heating the first object comprises heating the first object to a temperature ranging from about 110°F to about 160°F.
11. The method of claim 7, wherein heating the first object comprises heating the first object to a temperature ranging from about 120°F to about 140°F.
12. The method of claim 1, wherein stabilizing the composite object comprises placing the composite object in a substantially constant temperature environment.
13. The method of claim 7, wherein stabilizing the composite object comprises placing the composite object in a substantially constant temperature environment having a temperature ranging from about 65°F to about 85°F.
14. The method of claim 1, wherein placing the first object in a mold comprises placing the first object in a mold having an internal surface temperature so that the second material has a resin-rich surface, whereby producing a relatively smooth, hard surface on the second material.
15. The method of claim 7, wherein placing the first object in a mold comprises placing the first object in a mold having an internal surface temperature within a range from about 170°F to about 180°F.
16. The method of claim 1, wherein stabilizing the composite object comprises measuring the dimensions at a succession of times after removing the composite object from the mold.
17. The method of claim 1, wherein injecting the second material in the molten state into the mold comprises the second material flowing into a plurality of channels disposed in an exterior surface of the first object.
18. The method of claim 1, wherein injecting the second material in the molten state into the mold comprises the second material flowing into rectangular and semi-circular slots in the perimeter of the protrusion of the first object.
19. A method for molding a composite shell, the method comprising:
applying an adhesive to surfaces of a metal liner to be covered by a surround of the composite shell;
heating the metal liner;
placing the metal liner in a mold so that a surface of a protrusion of the metal liner abuts an interior surface of the mold so that the surface of the protrusion remains uncovered by the surround;
injecting a plastic in a molten state into the mold so that the plastic surrounds the metal liner to form the surround and thereby the composite shell, the plastic flowing into a plurality of channels disposed in an exterior surface of the metal liner to reduce slippage and de-lamination between the metal liner and the surround when the plastic solidifies, the plastic flowing into a plurality of slots in a perimeter of the protrusion so that when the plastic solidifies, a plurality plastic ribs extends into the plurality of slots in the perimeter to form a pressure seal between the metal liner and the surround;
removing the composite shell from the mold, wherein the protrusion of the liner extends through the surround so that the surface of the protrusion is substantially flush with an exterior surface of the surround; and stabilizing the composite shell until dimensions of the composite shell stop changing.
applying an adhesive to surfaces of a metal liner to be covered by a surround of the composite shell;
heating the metal liner;
placing the metal liner in a mold so that a surface of a protrusion of the metal liner abuts an interior surface of the mold so that the surface of the protrusion remains uncovered by the surround;
injecting a plastic in a molten state into the mold so that the plastic surrounds the metal liner to form the surround and thereby the composite shell, the plastic flowing into a plurality of channels disposed in an exterior surface of the metal liner to reduce slippage and de-lamination between the metal liner and the surround when the plastic solidifies, the plastic flowing into a plurality of slots in a perimeter of the protrusion so that when the plastic solidifies, a plurality plastic ribs extends into the plurality of slots in the perimeter to form a pressure seal between the metal liner and the surround;
removing the composite shell from the mold, wherein the protrusion of the liner extends through the surround so that the surface of the protrusion is substantially flush with an exterior surface of the surround; and stabilizing the composite shell until dimensions of the composite shell stop changing.
20. The method of claim 19, further comprising curing the adhesive after applying the adhesive.
21. The method of claim 19, further comprising curing the plastic after injecting the plastic into the mold.
22. The method of claim 19, wherein stabilizing the composite shell comprises measuring the dimensions at a succession of times after removing the composite shell from the mold.
23. The method of claim 19, wherein injecting the plastic in the molten state into the mold comprises the plastic flowing into a plurality of rectangular and semi-circular slots in the perimeter of the protrusion of the metal liner.
24. A method for molding a composite shell, the method comprising:
applying an adhesive to surfaces of a pair of aluminum liners to be covered by a surround of the composite shell;
heating the pair of aluminum liners;
placing the pair of aluminum liners in a mold so that a surface of a protrusion of each of the pair of aluminum liners abuts an interior surface of the mold so that the surface of the protrusion remains uncovered by the surround;
injecting glass-filled nylon in a molten state into the mold so that the glass-filled nylon material surrounds the pair of aluminum liners to form the surround and thereby the composite shell, the glass-filled nylon flowing into a plurality of channels disposed in an exterior surface of each of the aluminum liners to reduce slippage and de-lamination between the aluminum liners and the surround when the glass-filled nylon solidifies, the glass-filled nylon flowing into a plurality of slots in a perimeter of the protrusion so that when the glass-filled nylon solidifies, a plurality glass-filled nylon ribs extends into the plurality of slots in the perimeter to form a pressure seal between the metal liner and the surround;
removing the composite shell from the mold, wherein the protrusion of each of the pair of aluminum liners extends through the surround so that the surface of the protrusion is substantially flush with an exterior surface of the surround; and stabilizing the composite shell until dimensions of the composite shell stop changing.
applying an adhesive to surfaces of a pair of aluminum liners to be covered by a surround of the composite shell;
heating the pair of aluminum liners;
placing the pair of aluminum liners in a mold so that a surface of a protrusion of each of the pair of aluminum liners abuts an interior surface of the mold so that the surface of the protrusion remains uncovered by the surround;
injecting glass-filled nylon in a molten state into the mold so that the glass-filled nylon material surrounds the pair of aluminum liners to form the surround and thereby the composite shell, the glass-filled nylon flowing into a plurality of channels disposed in an exterior surface of each of the aluminum liners to reduce slippage and de-lamination between the aluminum liners and the surround when the glass-filled nylon solidifies, the glass-filled nylon flowing into a plurality of slots in a perimeter of the protrusion so that when the glass-filled nylon solidifies, a plurality glass-filled nylon ribs extends into the plurality of slots in the perimeter to form a pressure seal between the metal liner and the surround;
removing the composite shell from the mold, wherein the protrusion of each of the pair of aluminum liners extends through the surround so that the surface of the protrusion is substantially flush with an exterior surface of the surround; and stabilizing the composite shell until dimensions of the composite shell stop changing.
25. The method of claim 24, further comprising curing the glass-filled nylon from about three to four minutes after injecting the glass-filled nylon into the mold.
26. The method of claim 24, wherein curing the adhesive comprises curing the adhesive from about 6 hours to about 48 hours.
27. The method of claim 24, wherein heating the pair of aluminum liners comprises heating the pair of aluminum liners to a temperature ranging from about 110°F to about 160°F.
28. The method of claim 24, wherein heating the pair of aluminum liners comprises heating the pair of aluminum liners to a temperature ranging from about 120°F to about 140°F.
29. The method of claim 24, wherein stabilizing the composite shell comprises placing the composite shell in a substantially constant temperature environment having a temperature ranging from about 65°F to about 85°F.
30. The method of claim 24, wherein stabilizing the composite takes at least 48 hours.
31. The method of claim 24, wherein placing the pair of aluminum liners in a mold comprises placing the pair of aluminum liners in a mold having an internal surface temperature within a range from about 170°F to about 180°F.
32. The method of claim 24, wherein stabilizing the composite shell comprises measuring the dimensions at a succession of times after removing the composite shell from the mold.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/189,369 | 2002-07-02 | ||
| US10/189,369 US7118697B2 (en) | 2002-07-02 | 2002-07-02 | Method of molding composite objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2432481A1 true CA2432481A1 (en) | 2004-01-02 |
| CA2432481C CA2432481C (en) | 2011-01-04 |
Family
ID=29999658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2432481A Expired - Fee Related CA2432481C (en) | 2002-07-02 | 2003-06-17 | Molding composite objects |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7118697B2 (en) |
| CA (1) | CA2432481C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080237527A1 (en) * | 2007-03-29 | 2008-10-02 | Honeywell International, Inc. | Valve assembly including a non-metallic valve flowbody and an esd bonding connection |
| US7457123B1 (en) * | 2007-05-10 | 2008-11-25 | Adc Telecommunications, Inc. | Chassis mounted heat sink system |
| US7450382B1 (en) | 2007-05-15 | 2008-11-11 | Adc Telecommunications, Inc. | Apparatus for enclosing electronic components |
| US7535716B2 (en) * | 2007-05-23 | 2009-05-19 | Adc Telecommunications, Inc. | Apparatus for enclosing electronic components used in telecommunication systems |
| CN101573008B (en) * | 2008-04-28 | 2012-05-16 | 富准精密工业(深圳)有限公司 | Electronic device shell and manufacturing method thereof |
| US8505262B2 (en) | 2009-03-17 | 2013-08-13 | Pilkington Italia S.P.A. | Vehicle glazing having a trim mounted thereon |
| US20110042848A1 (en) * | 2009-08-24 | 2011-02-24 | Ash Charles E | Method of making a molded trim assembly |
| TWI583730B (en) | 2014-05-29 | 2017-05-21 | 聖高拜磨料有限公司 | Abrasive article having a core including a polymer material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722821A (en) * | 1983-12-30 | 1988-02-02 | The Boeing Company | Method of making a cascade basket for a thrust reverser |
| JPH0675523B2 (en) * | 1988-12-16 | 1994-09-28 | 吉田工業株式会社 | Manufacturing method for jewelry |
| JPH0475399A (en) * | 1990-07-17 | 1992-03-10 | Matsushita Electric Ind Co Ltd | Multilayer circuit member and its manufacture |
| JP2853541B2 (en) * | 1993-11-17 | 1999-02-03 | 住友電装株式会社 | Method for resin insert molding of metal member and connector block for injector of internal combustion engine |
| US6579485B2 (en) * | 2000-12-15 | 2003-06-17 | Haun Drop Forge Co. Ltd. | Method of injection molding around the surface of an object |
-
2002
- 2002-07-02 US US10/189,369 patent/US7118697B2/en not_active Expired - Fee Related
-
2003
- 2003-06-17 CA CA2432481A patent/CA2432481C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20040004306A1 (en) | 2004-01-08 |
| US7118697B2 (en) | 2006-10-10 |
| CA2432481C (en) | 2011-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130618 |